XML 67 R49.htm IDEA: XBRL DOCUMENT v3.20.4

Basis of Presentation and Significant Accounting Policies - Additional Information (Detail)		12 Months Ended
	Feb. 18, 2012 USD ($) shares	Dec. 31, 2020 USD ($) ft²	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Jan. 01, 2018 USD ($)
Summary of Significant Accounting Policies
Capitalized interest		$ 1,300,000	$ 53,900,000	$ 57,300,000
Amortization of debt issuance costs		28,932,000	28,954,000	36,917,000
Gaming tax expenses		527,500,000	2,240,000,000	2,440,000,000
Total advertising costs		$ 28,300,000	$ 61,300,000	$ 40,600,000
Cumulative effect, change in accounting					$ 0
Accumulated Other Comprehensive Income (Loss)
Summary of Significant Accounting Policies
Cumulative effect, change in accounting					(9,211,000)
Retained Earnings (Accumulated Deficit)
Summary of Significant Accounting Policies
Cumulative effect, change in accounting					$ 9,211,000
Minimum
Summary of Significant Accounting Policies
Terms of lease contracts		5 years
Maximum
Summary of Significant Accounting Policies
Terms of lease contracts		10 years
Wynn Palace
Summary of Significant Accounting Policies
Square footage of non-cancelable operating leases | ft²		101,000
Wynn Macau
Summary of Significant Accounting Policies
Square footage of non-cancelable operating leases | ft²		59,000
Wynn Las Vegas
Summary of Significant Accounting Policies
Square footage of non-cancelable operating leases | ft²		140,000
Encore Boston Harbor
Summary of Significant Accounting Policies
Square footage of non-cancelable operating leases | ft²		35,500
Aruze USA, Inc.
Summary of Significant Accounting Policies
Common shares redeemed and canceled (in shares) | shares	24,549,222
Debt instrument, aggregate principal amount	$ 1,940,000,000
Debt instrument, interest rate	2.00%
Aruze USA, Inc. | Promissory Note | Redemption Price Promissory Note With Former Stockholder and Related Party, Due February 18, 2022; Interest At 2%
Summary of Significant Accounting Policies
Common shares redeemed and canceled (in shares) | shares	24,549,222
Debt instrument, aggregate principal amount	$ 1,940,000,000
Debt instrument, interest rate	2.00%

X

- Definition

Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6420018&loc=d3e36677-107848

+ Details

Name:	us-gaap_AdvertisingExpense
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Amount after tax of increase (decrease) to equity or (increase) decrease to net assets, resulting from the cumulative effect adjustment of a new accounting principle applied in the period of adoption.

+ References

No definition available.

+ Details

Name:	us-gaap_CumulativeEffectOfNewAccountingPrincipleInPeriodOfAdoption
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

Name:	us-gaap_DebtInstrumentFaceAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Amount of interest capitalized during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6450988&loc=d3e26243-108391

+ Details

Name:	us-gaap_InterestCostsCapitalized
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Term of lessor's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 30
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=119202524&loc=SL77919359-209981

+ Details

Name:	us-gaap_LessorOperatingLeaseTermOfContract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Number of stock bought back by the entity at the exercise price or redemption price.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

+ Details

Name:	us-gaap_StockRedeemedOrCalledDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amortization and or write-offs of cash outflows paid to third parties in connection with debt origination, which will occur over the remaining maturity period of the associated long-term debt.

+ References

No definition available.

+ Details

Name:	wynn_AmortizationOfDeferredFinancingCostsandOther
Namespace Prefix:	wynn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Gaming tax expense.

+ References

No definition available.

+ Details

Name:	wynn_GamingTaxExpenses
Namespace Prefix:	wynn_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

Lessor, Operating Lease, Square Footage of Space Leased

+ References

No definition available.

+ Details

Name:	wynn_LessorOperatingLeaseSquareFootageOfSpaceLeased
Namespace Prefix:	wynn_
Data Type:	num:areaItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Summary Of Significant Accounting Policies [Line Items]

+ References

No definition available.

+ Details

Name:	wynn_SummaryOfSignificantAccountingPoliciesLineItems
Namespace Prefix:	wynn_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_AccumulatedOtherComprehensiveIncomeMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_StatementEquityComponentsAxis=us-gaap_RetainedEarningsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=wynn_WynnPalaceMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=wynn_WynnMacauMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=wynn_WynnLasVegasMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	srt_CounterpartyNameAxis=wynn_EncoreBostonHarborMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=wynn_AruzeUnitedStatesOfAmericaIncMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_LongtermDebtTypeAxis=us-gaap_NotesPayableOtherPayablesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_DebtInstrumentAxis=wynn_RedemptionPricePromissoryNoteWithFormerStockholderAndRelatedPartyDueFebruaryEighteenTwoThousandTwentyTwoMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: